Decoding CPT and HCPCS Codes

The Language of Medical Billing

Every medical service has a code. Understanding these codes helps you verify you're being billed correctly.

What Are Procedure Codes?

Procedure codes are standardized numbers that describe medical services. They ensure consistent communication between:

• Healthcare providers
• Insurance companies
• Billing departments
• Government agencies

The two main coding systems are CPT and HCPCS.

CPT Codes (Current Procedural Terminology)

CPT codes are maintained by the American Medical Association. They're 5-digit codes that describe medical procedures and services.

CPT Code Structure

CPT codes are organized into categories:

Range	Category	Examples
00100-01999	Anesthesia	General anesthesia for surgery
10004-69990	Surgery	Biopsies, repairs, removals
70010-79999	Radiology	X-rays, MRIs, CT scans
80047-89398	Lab/Pathology	Blood tests, urinalysis
90281-99607	Medicine	Office visits, injections
99201-99499	Evaluation & Management	Doctor consultations

Common CPT Codes You Might See

• 99213 - Established patient office visit (15-29 min)
• 99214 - Established patient office visit (30-39 min)
• 99215 - Established patient office visit (40-54 min)
• 36415 - Blood draw (venipuncture)
• 81003 - Urinalysis
• 71046 - Chest X-ray (2 views)

HCPCS Codes (Healthcare Common Procedure Coding System)

HCPCS (pronounced "hick-picks") codes cover items and services not included in CPT, particularly:

• Medical equipment and supplies
• Ambulance services
• Medications administered by providers
• Prosthetics and orthotics

HCPCS Code Structure

HCPCS codes start with a letter followed by 4 digits:

Prefix	Category	Examples
A	Transportation, supplies	A0428 (ambulance)
B	Enteral/parenteral	B4034 (feeding supplies)
E	Durable medical equipment	E0601 (CPAP device)
J	Drugs administered	J1885 (ketorolac injection)
L	Orthotics/prosthetics	L0650 (back brace)

Why Codes Matter for Billing Accuracy

Incorrect codes lead to:

1. Overcharging - A higher-level code than warranted
2. Undercharging - Services not properly captured
3. Claim Denials - Insurance won't pay for incorrect codes
4. Audit Risk - Improper coding can trigger investigations

Common Coding Errors

• Upcoding - Billing a more expensive code than performed
• Unbundling - Billing separately for bundled services
• Duplicate Billing - Same code billed multiple times
• Wrong Code - Service doesn't match the code description

How to Verify Codes on Your Bill

1. Look up the code description online
2. Compare to the service you received
3. Check if the code level matches the visit length
4. Verify codes aren't duplicated
5. Ensure related services are properly bundled

reKUPR automatically verifies codes against your services, flagging potential mismatches for your review.